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PR: 19055 Submitted by: Jan Mat�rne <jan at materne dot de> git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@274472 13f79535-47bb-0310-9956-ffa450edef68
210 lines
6.8 KiB
HTML
210 lines
6.8 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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<title>Image Task</title>
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</head>
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<body>
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<h2><a name="image">Image</a></h2>
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<h3>Description</h3>
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<p>Applies a chain of image operations on a set of files.</p>
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<p>Requires Java Advanced Image API from Sun.</p>
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<h5>Overview of used datatypes</h5>
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<img src="image-classdiagram.gif" border="0" alt="Class-Diagram">
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<h3>Parameters</h3>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top"> failonerror </td>
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<td valign="top"> Boolean value. If false, note errors to the output but keep going. </td>
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<td align="center"> no (defaults to <i>true</i>) </td>
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</tr>
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<tr>
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<td valign="top"> srcdir </td>
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<td valign="top"> Directory containing the images. </td>
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<td align="center"> yes, unless nested fileset is used </td>
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</tr>
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<tr>
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<td valign="top"> encoding </td>
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<td valign="top"> Image encoding type. <br>
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Valid (caseinsensitive) are: jpg, jpeg, tif, tiff
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</td>
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<td align="center"> no (defaults to <i>JPEG</i>) </td>
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</tr>
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<tr>
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<td valign="top"> overwrite </td>
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<td valign="top"> Boolean value. Sets whether or not to overwrite
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a file if there is naming conflict.
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</td>
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<td align="center"> no (defaults to <i>false</i>) </td>
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</tr>
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<tr>
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<td valign="top"> gc </td>
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<td valign="top"> Boolean value. Enables garbage collection after
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each image processed.
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</td>
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<td align="center"> no (defaults to <i>false</i>) </td>
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</tr>
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<tr>
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<td valign="top"> destdir </td>
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<td valign="top"> Directory where the result images are stored. </td>
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<td align="center"> no (defaults to value of <i>srcdir</i>) </td>
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</tr>
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<!-- attributes inherited from MatchingTask -->
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<tr>
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<td valign="top">includes</td>
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<td valign="top">comma- or space-separated list of patterns of files that must be
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included. All files are included when omitted.</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">includesfile</td>
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<td valign="top">the name of a file. Each line of this file is
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taken to be an include pattern</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top"> excludes</td>
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<td valign="top">comma- or space-separated list of patterns of files that must be
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excluded. No files (except default excludes) are excluded when omitted.</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">excludesfile</td>
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<td valign="top">the name of a file. Each line of this file is
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taken to be an exclude pattern</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">defaultexcludes</td>
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<td valign="top">indicates whether default excludes should be used or not
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("yes"/"no"). Default excludes are used when omitted.</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top"> caseSensitive </td>
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<td valign="top"> Boolean value. Sets case sensitivity of the file system. </td>
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<td align="center"> no (defaults to <i>false</i>) </td>
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</tr>
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<tr>
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<td valign="top"> followSymlinks </td>
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<td valign="top"> Boolean value. Sets whether or not symbolic links hsould be followed. </td>
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<td align="center"> no (defaults to <i>true</i>) </td>
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</tr>
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</table>
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<h3>Parameters specified as nested elements</h3>
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<p>This task forms an implicit <a href="../CoreTypes/fileset.html">FileSet</a> and
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supports all attributes of <code><fileset></code> as well as the
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nested <code><include></code>, <code><exclude></code> and
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<code><patternset></code> elements.</p>
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<h4>ImageOperation</h4>
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<p>Adds an ImageOperation to chain.</p>
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<h5>Nested Elements</h5>
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ImageOperation can handle nested Rotate, Draw, Rectangle, Text and Scale objects.
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<h4>Rotate</h4>
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<p>Adds a Rotate ImageOperation to chain.</p>
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<h5>Parameters</h5>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top"> angle </td>
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<td valign="top"> Float value. Sets the angle of rotation in degrees. </td>
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<td align="center"> no (defaults to <i>0.0F</i>) </td>
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</tr>
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</table>
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<h4>Scale</h4>
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<p>Adds a Scale ImageOperation to chain.</p>
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<h5>Parameters</h5>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top"> keepproportions </td>
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<td valign="top"> Boolean value. Sets whether the proportion heigth/width should be kept. </td>
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<td align="center"> no (defaults to <i>false</i>) </td>
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</tr>
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<tr>
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<td valign="top"> width </td>
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<td valign="top"> Sets the width of the image, either as an integer or a %. </td>
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<!-- todo: if integer, what kind? cm, px, inches, ... -->
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<td align="center"> no (defaults to <i>100%</i>) </td>
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</tr>
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<tr>
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<td valign="top"> heigth </td>
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<td valign="top"> Sets the height of the image, either as an integer or a %. </td>
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<!-- todo: if integer, what kind? cm, px, inches, ... -->
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<td align="center"> no (defaults to <i>100%</i>) </td>
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</tr>
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</table>
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<h4>Draw</h4>
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<p>Adds a Draw ImageOperation to chain. DrawOperation DataType objects can be
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nested inside the Draw object.</p>
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<h5>Parameters</h5>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top"> xloc </td>
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<td valign="top"> X-Position where to draw nested image elements. </td>
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<td align="center"> no (defaults to <i>0</i>) </td>
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</tr>
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<tr>
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<td valign="top"> yloc </td>
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<td valign="top"> Y-Position where to draw nested image elements. </td>
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<td align="center"> no (defaults to <i>0</i>) </td>
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</tr>
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</table>
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<h3>Examples</h3>
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<blockquote><pre>
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<image srcdir="src" includes="*.png">
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<scale keepproportions="true" width="40"/>
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</image>
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</pre></blockquote>
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<p>Creates a thumbnail for all PNG-files in <i>src</i> in the size of 40 pixel keeping the proportions
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and stores the <i>src</i>.</p>
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<blockquote><pre>
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<image srcdir="src" destdir="dest" includes="*.png">
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<scale keepproportions="true" width="40"/>
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</image>
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</pre></blockquote>
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<p>Same as above but stores the result in <i>dest</i>.</p>
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<blockquote><pre>
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</pre></blockquote>
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<hr>
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<p align="center">Copyright © 2003 Apache Software
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Foundation. All rights Reserved.</p>
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</body>
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</html>
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